The United States launched dozens of cruise missiles Thursday night at a Syrian airfield in response to what it believes was Syria’s use of banned chemical weapons that killed at least 100 people, U.S. military officials told NBC News.

Two U.S. warships in the Mediterranean Sea fired 59 Tomahawk missiles intended for a single target — Ash Sha’irat in Homs province in western Syria, the officials said. That’s the airfield from which the United States believes the government of Syrian President Bashar al-Assad fired the banned weapons.

There was no immediate word on casualties. U.S. officials told NBC News that people were not targeted and that aircraft and infrastructure at the site were hit, including the runway and gas fuel pumps.

“Assad choked out the lives of helpless men, women and children,” President Donald Trump said in remarks from Mar-a-Lago, his family compound in Palm Beach, Florida.

“It is in this vital national security interest of the United States to prevent and deter the spread and use of deadly chemical weapons,” said Trump, who called on other countries to end the bloodshed in Syria.